Laser Viva Questions and Answers
Frequently asked questions and answers of Laser in Optics of Physics to enhance your skills, knowledge on the selected topic. We have compiled the best Laser Interview question and answer, trivia quiz, mcq questions, viva question, quizzes to prepare. Download Laser FAQs in PDF form online for academic course, jobs preparations and for certification exams .
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Question-1. What is semi conductor diode laser?
Answer-1: Semiconductor diode laser is a specially fabricated pn junction diode. It emits laser light when it is forward biased.
Question-2. What is LASER?
Answer-2: The term LASER stands for Light Amplification by Stimulated Emission of Radiation. It is a device which produces a powerful, monochromatic collimated beam of light in which the waves are coherent.
Question-3. What are the characteristic of laser radiation?
Answer-3: Laser radiations have high intensity, high coherence, high monochoromation and high directionality with less divergence.
Question-4. Define numerical aperture ?
Answer-4: Numerical aperture is defined as the light gathering capability of an optical fiber. It is the sine of the acceptance angle. NA=sineφa
Question-5. What is the principle used in fiber optic communication system?
Answer-5: The principle behind the transmission of light waves in an optical fiber is total internal reflection.
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